tcg: Introduce tcg_set_insn_start_param

tcg: Introduce tcg_set_insn_start_param

The parameters for tcg_gen_insn_start are target_ulong, which may be split
into two TCGArg parameters for storage in the opcode on 32-bit hosts.

Fixes the ARM target and its direct use of tcg_set_insn_param, which would
set the wrong argument in the 64-on-32 case.

Cc: [email protected]
Reported-by: [email protected]
Signed-off-by: Richard Henderson <[email protected]>
Message-id: 20180410003558[email protected]
Reviewed-by: Peter Maydell <[email protected]>
Signed-off-by: Peter Maydell <[email protected]>